原纸：未加涂层的基纸。
覆铜箔层压板原纸是生产印刷线路板用全纸基覆铜箔层压板的基础材料，是一种生产难度较高的特种工业用纸。
The copper foil board base paper is the fundamental material to product the paper of printing line board, and also is a kind of higher degree special industrial paper.
原淀粉与聚乙烯基胺的混合糊液对再生浆具有显著的纸力增强、助滤和助留效果。
The mixtures of the starch and polyvinylamine showed significant effects on the improvement of paper strength, draining and retention of the pulp.
原淀粉与聚乙烯基胺的混合糊液对再生浆具有显著的纸力增强、助滤和助留效果。
The mixtures of the starch and polyvinylamine showed significant effects on the improvement of paper strength, draining and retention of the pulp.
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